panic: Incrementing non-positive count 0xc007e25008 on tmpfs.inode

goroutine 404 [running]:
panic({0xe92cc0, 0xc0099d55c0})
	GOROOT/src/runtime/panic.go:941 +0x397 fp=0xc000ac7400 sp=0xc000ac7340 pc=0x435a77
gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*inodeRefs).IncRef(0xc007e25008)
	bazel-out/k8-fastbuild-ST-246649c541f7/bin/pkg/sentry/fsimpl/tmpfs/inode_refs.go:80 +0xfb fp=0xc000ac7468 sp=0xc000ac7400 pc=0x81325b
gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*inode).incRef(...)
	pkg/sentry/fsimpl/tmpfs/tmpfs.go:520
gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*dentry).IncRef(...)
	pkg/sentry/fsimpl/tmpfs/tmpfs.go:377
gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*filesystem).GetDentryAt(0xc000198dd0?, {0x1264dd0, 0xc000a30a80}, 0xc0041c0480, {0x0?})
	pkg/sentry/fsimpl/tmpfs/filesystem.go:258 +0x1a5 fp=0xc000ac74d8 sp=0xc000ac7468 pc=0x80c1e5
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).GetDentryAt(0xc000749000?, {0x1264dd0, 0xc000a30a80}, 0xc0068d1c00?, 0xc00b0a8800?, 0xc000ac7585)
	pkg/sentry/vfs/vfs.go:229 +0x74 fp=0xc000ac7538 sp=0xc000ac74d8 pc=0x730014
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).UmountAt(0xc000198dd0, {0x1264dd0, 0xc000a30a80}, 0xc000a32c00?, 0xc00b0a8800?, 0xc000ac7794)
	pkg/sentry/vfs/mount.go:643 +0xd6 fp=0xc000ac7708 sp=0xc000ac7538 pc=0x725736
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Umount2(0xc000a30a80, {{0x7f08aae1a580}, {0xa}, {0x7f08aae1a58c}, {0x558c411ae7a3}, {0xffffffff}, {0x7f08aae1a350}})
	pkg/sentry/syscalls/linux/sys_mount.go:171 +0x2be fp=0xc000ac78a0 sp=0xc000ac7708 pc=0xa191fe
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc000a30a80, 0xa6, {{0x7f08aae1a580}, {0xa}, {0x7f08aae1a58c}, {0x558c411ae7a3}, {0xffffffff}, {0x7f08aae1a350}})
	pkg/sentry/kernel/task_syscall.go:142 +0x755 fp=0xc000ac7c90 sp=0xc000ac78a0 pc=0x8f3c15
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc000a30a80, 0xc0001c6768?, {{0x7f08aae1a580}, {0xa}, {0x7f08aae1a58c}, {0x558c411ae7a3}, {0xffffffff}, {0x7f08aae1a350}})
	pkg/sentry/kernel/task_syscall.go:322 +0x4a fp=0xc000ac7cf0 sp=0xc000ac7c90 pc=0x8f4e4a
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0x0?, 0xc0003c0000?, {{0x7f08aae1a580}, {0xa}, {0x7f08aae1a58c}, {0x558c411ae7a3}, {0xffffffff}, {0x7f08aae1a350}})
	pkg/sentry/kernel/task_syscall.go:282 +0x65 fp=0xc000ac7d50 sp=0xc000ac7cf0 pc=0x8f4b25
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc00055e000?)
	pkg/sentry/kernel/task_syscall.go:257 +0x2f0 fp=0xc000ac7e48 sp=0xc000ac7d50 pc=0x8f4890
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0?, 0xc000a30a80)
	pkg/sentry/kernel/task_run.go:253 +0xdea fp=0xc000ac7f60 sp=0xc000ac7e48 pc=0x8e8e2a
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000a30a80, 0x2e)
	pkg/sentry/kernel/task_run.go:94 +0x1ac fp=0xc000ac7fc0 sp=0xc000ac7f60 pc=0x8e7a2c
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:378 +0x2a fp=0xc000ac7fe0 sp=0xc000ac7fc0 pc=0x8f246a
runtime.goexit()
	src/runtime/asm_amd64.s:1571 +0x1 fp=0xc000ac7fe8 sp=0xc000ac7fe0 pc=0x469781
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:378 +0xf9